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GW-BASIC | 1984-11-23 | 512 b | 13 lines |
- 1 'Test of graphics monitor consisting of a grid of dots which may be used
- 3 'for checking convergence. You must switch to a graphic display 4 'before entering. Press any key to exit.
- 5 'John L. Dickinson, Tucson, 7-29-82
- 6 '
- 10 SCREEN 2,0:WIDTH 80:KEY OFF:CLS
- 20 FOR X=0 TO 639 STEP 17
- 22 FOR Y=0 TO 199 STEP 8
- 30 CIRCLE (X,Y),0
- 35 NEXT Y
- 37 NEXT X
- 40 A$=INKEY$:IF A$=""THEN GOTO 40
- 50 CLS
-